Primary Extraosseous Ewing Sarcoma on 18F-FDG and 68Ga-FAPI-04 PET/CT

Clin Nucl Med. 2024 Nov 27. doi: 10.1097/RLU.0000000000005577. Online ahead of print.

Abstract

Primary extraosseous Ewing sarcoma of the nasal cavity is rare. A 17-year-old man underwent 18F-FDG and 68Ga-FAPI-04 PET/CT for a nasal mass. The mass showed avid FDG uptake but weak FAPI uptake. Endoscopic endonasal biopsy confirmed the diagnosis of Ewing sarcoma.